In Computing, what is Cache Coherence?

Cache coherence refers to the sharing of resource data in multiple cache locations in a uniform way. When someone has a system that maintains caches from a common resource of memory, problems can arise due to ‘incoherent’ data, especially when multiple CPUs are active within a multiprocessing environment.

When talking about a shared memory system featuring multiprocessors that each have a different set of cache memory for each CPU, there are copies of the shared data in both the main memory and in the cache. Cache coherence relates to the task of ensuring that both sets of data are the same and ‘coherent’.

Memory Installation Guides

Memory is one of the simplest upgrades that you can perform on your computer. To make it even easier our support team have created both installation videos and a written guide for you to follow.

Should you have any issues with your installation please see our FAQ page or contact our support team via live chat or at support@offtek.co.uk.

Lifetime Warranty

All OFFTEK memory is backed by our full lifetime warranty. We obsess over our products so you do not have to. Our team constantly strive to ensure that all our memory is of the highest quality but should you ever have any issues with your purchase you have the peace of mind that you can return your product for a replacement if the need arises.

Top Brands

We have close relationships with all of the top tier RAM memory manufacturers which enables us to provide a constant supply of the highest quality products. This in effect means compatible, reliable RAM and most importantly great prices, all backed by a limited lifetime warranty. If you require a specific brand of memory then please do not hesitate to contact one of our sales team.

Guaranteed Compatibility

Over the years we have taken immense care in creating one of the most in depth memory configurators. We do this to ensure that when you purchase a memory upgrade from OFFTEK you are confident that the upgrade is 100% compatible with your system.
Should you have any questions prior to ordering your upgrade we have technicians on hand via live chat, email or phone who will be able to answer any queries you may have.

We take the time to look into each machine to ensure that we offer all sizes and speeds that the machine is able to take not just the latest specification that has been released. We believe that offering all options for machines provides a 100% guarantee that the memory with function with your original memory module efficiently.

The History of Kyocera

The Kyocera Corporation is a huge multinational manufacturer of electronics and ceramics, hailing from Japan. With its headquarters located in Kyoto, it was initially known as the Kyoto Ceramic Company Limited.

The company was founded by one Kazuo Inamori back in 1959 and was subsequently renamed Kyocera in the early 1980s. At its inception, Kyocera was primarily involved in ceramics, but over the years it has diversified into solar power, document imaging, telecoms, semiconductors and electronic components.

Original OfferingTo begin with, the company produced an insulating ceramic product called ‘kelcima’ that was used in the production of cathode ray tubes for TVs. It quickly expanded via a series of mergers and acquisitions to extend its range of technologies, finding more and more uses for its ceramics. By the 1960s, with a very active NASA and the advent of Silicon Valley, the demand for its products was booming.

Moving forward into the 1970s, Kyocera moved out of their comfort zone and started producing a range of solar photovoltaic cells, cutting tools for industry, as well as knives, ceramic pens and interestingly, lab-grown gems.

The Tandy Model 100By the beginning of the 1980s, they had moved into radio communication technologies and electronic component creation after it acquired an interest in Cybernet Electronics Corporation. Not long after, Kyocera created one of the very first portable laptop computers, called the TRS Model 100. It was powered by battery, had an LCD screen and a facility to transmit data via a telephone modem.

OpticsA few years later, Kyocera moved into optical tech when it bought Yashica, which carried the added benefit of also acquiring Yashica’s licensing agreement with German optical giant, Carl Zeiss. This allowed the company to manufacture conventional and digital cameras under their own name up until 2005 when it ceased making them.

Since then, Kyocera has continued to diversify and amongst other industries, they have been active in mobile phones, buying Sanyo’s mobile phone division in 2008, as well its operations in the US, Canada, and Japan.

Aside from launching its own smartphone, (the Zio) in 2010, Kyocera has largely stayed out of the retail markets, preferring to focus on optics and industrial cutting tool manufacturing. In line with this strategy, Kyocera bought Optrex Corporation in 2012 and then SGS Tool Company (an international cutting tool manufacturer) for almost $90m.

Whilst not at the forefront of the computer retail and as a result, largely out of the public eye, Kyocera have made a major contribution to the fields of optics and semiconductor technology. The company represents another cog in the machine of technological advancement in the field of personal computers.

If you are looking to place a quantity order or are buying on behalf of the public or private sector then please contact one of our designated account managers who will be able to deal with your requirements in more detail.

Unsure on your current memory specification or looking to purchase in quantity?

For any queries you may have please contact one of our experienced Memory Specialists via one of the following methods and they will ensure that any issue is resolved immediately and effectively.

Request a Callback

Feedback

"I bought extra memory for my laptop, it arrived quickly and fitted perfectly. Very happy with product and service"

Konstantinos from Attica

17th January 2016

"The price was low the product was under specs (also in packaging) and the delivery time perfect. So i think dererves five stars!"

A from Northumberland

13th January 2016

"No Problems, fast and good quality"

Michael. from London

Verified Order

7th January 2016

"Good Service..............Thanks"

James from Kent

Verified Order

10th July 2015

"Good seller and the product works "

Sean from Kent

Verified Order

31st May 2014

"Nice items. Thanks"

Christopher from Dorset

Verified Order

1st December 2013

"All Good Thanks .:)"

Steve from Merseyside

8th October 2012

"As a purchasing manager for an IT data company, I'm always looking for the quickest, easiest & cheapest way of ordering products. Offtek certainly have got it right with their website for online ordering. So easy to find the memory you need, & the whole process from start to finish runs like clockwork. Fast & efficient delivery service as well, with progress updates sent to your inbox along the way."

Free Returns

The advantages of adding more Ram Memory

Installing a memory module is one of the simplest upgrades that can be done to a computer

There is no configuration, no sitting around waiting for things to update and backup. It is simply plug and play!By adding more Ram memory into you laptop, desktop or server you will be doing the following:

Improving the overall performance of the machine

Allowing for increased multitasking

Extending the life of the machine

Producing faster boot times

Increasing productivity

Decreasing latency in gaming

Adding memory is the easiest upgrade available for your machine for the best increase in performance. If you are unsure on how to upgrade your machine no problem take a look at our detailed guides on how to install your new Laptop or Desktop Memory upgrade.

Compatibility Guarantee

Guaranteed Compatibility

Over the years we have taken immense care in creating one of the most in depth memory configurators. We do this to ensure that when you purchase a memory upgrade from OFFTEK you are confident that the upgrade is 100% compatible with your system.
Should you have any questions prior to ordering your upgrade we have technicians on hand via live chat, email or phone who will be able to answer any queries you may have.

We take the time to look into each machine to ensure that we offer all sizes and speeds that the machine is able to take not just the latest specification that has been released. We believe that offering all options for machines provides a 100% guarantee that the memory with function with your original memory module efficiently.

Why buy from offtek

Matched Ram upgrades for your specific model

Offtek provides matched upgrades for new and legacy machines. Every one of our RAM modules are tested to ensure that not only are they compatible with the machine but also that they perform in a wide range of different environmental conditions. This allows us to back our modules with a limited lifetime warranty.

Established in 1996, OFFTEK is trusted by many of the UK's best known household names as their number ONE source for ram upgrades.

Misson critical or movie night we have your upgrade sorted

Our team is made up of memory specialists with an average of 9 years experience in the RAM industry. We offer upgrades for not only the latest machines on the market but just as important those legacy machines that you need to keep running.

RAM is extremely important in ensuring your machine operates at its optimum performance. Our upgrades ensure that your computer will be performing at its best for years to come.

Fast Free UK Delivery

We offer FAST FREE UK Delivery on all orders with 96% of orders dispatched same day. For those that cannot wait we also offer faster delivery options including next day.

60 Day Money Back Guarantee

Not 100% happy with your order then return it to us under our No Quibble 60 Day Money Back Guarantee. Worried you might have made the wrong choice? With our no quibble return policy you can send it back to us and get a full refund up to 60 days after you've received your order. Whether you've picked the wrong product or just changed your mind you can send your order back to us and you'll get all your money back.

Twice Daily Price Checks

Our Price Promise commitment means that you can buy from us with confidence.

Our team works hard to ensure that you not only have peace of mind in the fact that the memory you order is 100% compatible but that our price is also the lowest for that product.

We check our prices daily against all our competitors to ensure that you are getting the best deal.

Experts On Hand

We have dedicated and highly trained experts with an average of 7 years experience. They are here to help you from purchase through to installation. We use a number of contact methods so you can speak to one of our specialists with ease.

Limited Lifetime Warranty

Feel confident that your memory will last a lifetime. Our limited lifetime warranty guarantees that if your memory should ever fail we will replace or repair the product free of charge provided that it is still manufactured. Please note that the lifetime warranty refers only to memory modules and not flash memory or storage products. Please see the individual 'product details' for warranties specific to each product.

100% Compatibility

Every memory product matched specifically to your machine is individually tested to guarantee reliability and 100% compatibility with your computer and operating system.

Online Since 1997

Offtek has been supplying memory online since 1997 with over 500,000 happy customers. Well, maybe the odd one does'nt like us ;)

We have always been passionate about providing our customers with the tools and information to update their systems in the simplest manner. Early in 1996 we took on the challenge to find the type of memory compatible with every computer ever built. Hence our first memory configurator was born. Our constant daily updates allow our customers to easily select the correct memory for their machines and that objective is as important today as it was when the idea was first broached across a kitchen table in central Birmingham

Large Stock Holding

As one the largest memory distributors in Europe, our large stock holding allows us to offer next day delivery on a wide range of products.

Environmentally Friendly

If you have no need for your old memory after you have upgraded to one of our larger/faster modules, we will recycle this for you free of charge under the WEEE directive.

Brands we Supply

Price Match Request

Fill in the form below if you have seen a product cheaper elsewhere and we will respond via email within 24 hours.

Contact form for the Privacy Officer

You can contact the Offtek Privacy Officer at any point should you have any queries relating to our "Privacy Policy".

This form allows you execute your right to be forgotten. You have the right to object to our use of your personal data, or ask us to view, edit, remove or stop using it if there is no need for us to keep it.

In order to comply with your request, we may ask you to verify your identity.

If you request removal of your personal information, we may as detailed within our Privacy Policy be required to retain some of your data for a minimum period.

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Enquiry

We will only use your details to provide a response and/or to complete your request.